Product Summary

Universal Fit

  • No need to pull the carbs off to change jets
  • Easily adjust your engine for altitude changes
  • Fits Holley 94 - 2100 - ECG - and other 3 bolt Holley carburetors
  • Change your mixture while the engine is running
  • Jets come with Teflon® sealing washer and Viton® O-ring seals

Key Specs

MFG. Part #91611073
BrandSpeedway Motors

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If you are like us, you really don't like pulling the carbs off to change jets over and over...These adjustable main jets will make life a little easier and get your car running right, a lot faster. Simply screw in the place of your jet well plugs and turn clockwise to lean your high speed mixture and counter-clockwise to richen the mixture. Mixture changes can be made while the engine is running and without taking the top off the carb. This new design lets the adjustable jets set closer to the carb so they will work on multi-carb manifolds, even if the carbs are touching each other.

Holley 94 adjustable main jet kit features stainless steel needle, lock nut and brass body. We also include a set of large jets (.059) and a set of extra O-ring seals if ever needed. Jets come with Teflon sealing washer and Viton O-ring seals.

  • Lean your engine for altitude changes
  • Get your exhaust temps balanced
  • Get your plug color just right
  • Give your hot rod the best tune up she's ever had

Fits Holley 94 - 2100 - ECG - and other 3 bolt Holley carburetors. Sold as a PAIR.


CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


MFG. Part #91611073
BrandSpeedway Motors